Interactive effects of rice-residue biochar and N-fertilizer on soil functions and crop biomass in contrasting soils

Abstract: There is limited understanding of the effects of rice residue biochar, particularly when applied in combination with nitrogen (N) fertilizer on soil fertility, soil C sequestration and crop productivity. A one-year pot experiment was established to examine effects of rice residue biochar (...

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Autores principales:	Singh Mavi,Manpreet, Singh,Gurwinder, Singh,Bhupinder Pal, Singh Sekhon,Bharpoo, Choudhary,Om Prakash, Sagi,Sudhakar, Berry,Robert
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2018
Materias:	Biochar rates wheat-maize cropping system nitrogen levels C stocks available nutrients soil texture
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000100041
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spelling	oai:scielo:S0718-951620180001000412018-11-21Interactive effects of rice-residue biochar and N-fertilizer on soil functions and crop biomass in contrasting soilsSingh Mavi,ManpreetSingh,GurwinderSingh,Bhupinder PalSingh Sekhon,BharpooChoudhary,Om PrakashSagi,SudhakarBerry,Robert Biochar rates wheat-maize cropping system nitrogen levels C stocks available nutrients soil texture Abstract: There is limited understanding of the effects of rice residue biochar, particularly when applied in combination with nitrogen (N) fertilizer on soil fertility, soil C sequestration and crop productivity. A one-year pot experiment was established to examine effects of rice residue biochar (0, 10, 20 and 40 t ha-1) and N (0, 60, 90, 120 and 150 kg N ha-1) in soils with contrasting texture (loamy sand and sandy clay loam) in a wheat(maize cropping sequence. Biochar was only applied once before sowing wheat. Biochar alone or in combination with N did not significantly increase wheat biomass in both soils, whereas biomass of maize (next crop) was significantly increased from the residual effect of biochar, alone or in combination with N fertilizer. In both soils, electrical conductivity (EC) and pH, oxidisable organic carbon (OC), microbial biomass carbon (MBC), dissolved organic carbon (DOC) and available nutrients (NPK) increased with increasing rates of biochar addition. However, addition of N with biochar (cf. biochar alone) did not change pH and oxidisable OC values but increased EC significantly. After one year, the soil organic carbon (SOC) stocks increased beyond the input of biochar-C, that is, by 0.1-2.1 t ha-1 and 1.8-4.8 t ha-1 in loamy sand and sandy clay loam, respectively, across all treatments. It may be concluded that the potential benefits of rice residue biochar to soil functions and crop production may encourage growers to minimise open field burning of straw, which is a common practice in the region.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.18 n.1 20182018-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000100041en10.4067/S0718-95162018005000201
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Biochar rates wheat-maize cropping system nitrogen levels C stocks available nutrients soil texture
spellingShingle	Biochar rates wheat-maize cropping system nitrogen levels C stocks available nutrients soil texture Singh Mavi,Manpreet Singh,Gurwinder Singh,Bhupinder Pal Singh Sekhon,Bharpoo Choudhary,Om Prakash Sagi,Sudhakar Berry,Robert Interactive effects of rice-residue biochar and N-fertilizer on soil functions and crop biomass in contrasting soils
description	Abstract: There is limited understanding of the effects of rice residue biochar, particularly when applied in combination with nitrogen (N) fertilizer on soil fertility, soil C sequestration and crop productivity. A one-year pot experiment was established to examine effects of rice residue biochar (0, 10, 20 and 40 t ha-1) and N (0, 60, 90, 120 and 150 kg N ha-1) in soils with contrasting texture (loamy sand and sandy clay loam) in a wheat(maize cropping sequence. Biochar was only applied once before sowing wheat. Biochar alone or in combination with N did not significantly increase wheat biomass in both soils, whereas biomass of maize (next crop) was significantly increased from the residual effect of biochar, alone or in combination with N fertilizer. In both soils, electrical conductivity (EC) and pH, oxidisable organic carbon (OC), microbial biomass carbon (MBC), dissolved organic carbon (DOC) and available nutrients (NPK) increased with increasing rates of biochar addition. However, addition of N with biochar (cf. biochar alone) did not change pH and oxidisable OC values but increased EC significantly. After one year, the soil organic carbon (SOC) stocks increased beyond the input of biochar-C, that is, by 0.1-2.1 t ha-1 and 1.8-4.8 t ha-1 in loamy sand and sandy clay loam, respectively, across all treatments. It may be concluded that the potential benefits of rice residue biochar to soil functions and crop production may encourage growers to minimise open field burning of straw, which is a common practice in the region.
author	Singh Mavi,Manpreet Singh,Gurwinder Singh,Bhupinder Pal Singh Sekhon,Bharpoo Choudhary,Om Prakash Sagi,Sudhakar Berry,Robert
author_facet	Singh Mavi,Manpreet Singh,Gurwinder Singh,Bhupinder Pal Singh Sekhon,Bharpoo Choudhary,Om Prakash Sagi,Sudhakar Berry,Robert
author_sort	Singh Mavi,Manpreet
title	Interactive effects of rice-residue biochar and N-fertilizer on soil functions and crop biomass in contrasting soils
title_short	Interactive effects of rice-residue biochar and N-fertilizer on soil functions and crop biomass in contrasting soils
title_full	Interactive effects of rice-residue biochar and N-fertilizer on soil functions and crop biomass in contrasting soils
title_fullStr	Interactive effects of rice-residue biochar and N-fertilizer on soil functions and crop biomass in contrasting soils
title_full_unstemmed	Interactive effects of rice-residue biochar and N-fertilizer on soil functions and crop biomass in contrasting soils
title_sort	interactive effects of rice-residue biochar and n-fertilizer on soil functions and crop biomass in contrasting soils
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000100041
work_keys_str_mv	AT singhmavimanpreet interactiveeffectsofriceresiduebiocharandnfertilizeronsoilfunctionsandcropbiomassincontrastingsoils AT singhgurwinder interactiveeffectsofriceresiduebiocharandnfertilizeronsoilfunctionsandcropbiomassincontrastingsoils AT singhbhupinderpal interactiveeffectsofriceresiduebiocharandnfertilizeronsoilfunctionsandcropbiomassincontrastingsoils AT singhsekhonbharpoo interactiveeffectsofriceresiduebiocharandnfertilizeronsoilfunctionsandcropbiomassincontrastingsoils AT choudharyomprakash interactiveeffectsofriceresiduebiocharandnfertilizeronsoilfunctionsandcropbiomassincontrastingsoils AT sagisudhakar interactiveeffectsofriceresiduebiocharandnfertilizeronsoilfunctionsandcropbiomassincontrastingsoils AT berryrobert interactiveeffectsofriceresiduebiocharandnfertilizeronsoilfunctionsandcropbiomassincontrastingsoils
_version_	1714206570055729152

Interactive effects of rice-residue biochar and N-fertilizer on soil functions and crop biomass in contrasting soils

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